The WL16 Level Logger from Global Water is used for well or surface water level monitoring. Sensor ranges include 0-1m, 3m, 15m, 30m, 60m 120m and 150m. Includes barometric pressure and temperature compensation. Optional PDA for data display/downloading.

The Edge LT from Solinst Canada is the upgrade of the very succesful Levelogger Gold. It is an accurate & stable down the well level & temp logger. Sensor ranges: 0-5m, 0-10m, 0-20m, 0-30m 0-100m. Features: Temperature compensation & 3 year warranty.

The Levelogger Junior from Solinst is the lower priced, lower specification (less accurate, less memory and a few other minor down grades) version of the Levelogger Edge. It is available in a 0-5m and 0-10m depth sensor option. One (1) year warrentee.